English — Forum #350 (Page 19/163)

1. How should the alarm threshold and range of a toluene diisocyanate toxic gas detector be set? - HCBBS Forum
2. What are the options for selecting air-operated control valves for air-open and air-close operation? - HCBBS Forum
3. Does the pressure gauge have several scale marks, one for the upper limit and one for the lower limit of the range? - HCBBS Forum
4. Dinghua Radar Knowledge Lecture: This is how operational errors can be reduced and the service life of radar level gauges extended - HCBBS Forum
5. Instrument FM sealing surface? - HCBBS Forum
6. Vacuum measurement - HCBBS Forum
7. Calibration of differential pressure density meter - HCBBS Forum
8. Grounding issues of communication cables - HCBBS Forum
9. Japan SSS Positioner Selection Guide - HCBBS Forum
10. Differences between Siemens PLC S7-1200 and 200 - HCBBS Forum
11. SIS system performance review - HCBBS Forum
12. Problem with the alarm interlock circuit - HCBBS Forum
13. Seeking information on DB45/T 386-2007 Standards for Design, Construction, and Acceptance of Flammable Gas Detection and Alarm Systems - HCBBS Forum
14. A problem that has troubled me for a long time: pneumatic ON/OFF butterfly valves - HCBBS Forum
15. Instrument Technician Question Bank (3rd Edition) – Field Instruments Volume - HCBBS Forum
16. The Application of Safety Instrumented Systems (SIS) in the Process Industry - HCBBS Forum
17. Sharing of specifications related to automation of HG instruments in the chemical industry - HCBBS Forum
18. Some suggestions for selecting radar level gauges - HCBBS Forum
19. Interlocking problem - HCBBS Forum
20. 100,000 Questions on the Chemical Industry [I. Questions and Answers on Chemical Instruments] HY-001: Ask me, I’ll answer Or should you ask everyone to answer? - HCBBS Forum
21. Understanding and Implementation of Step-Controlled Systems - HCBBS Forum
22. How many control wires can be passed through a galvanized pipe? - HCBBS Forum
23. I’d like to ask everyone questions regarding level control - HCBBS Forum
24. Nanjing Keyuan NT6000 video tutorial - HCBBS Forum
25. Is it possible to set up an analysis dashboard section? - HCBBS Forum
26. The impact of ambient temperature on cables - HCBBS Forum
27. Redundancy of solenoids in interlocked valves - HCBBS Forum
28. What does Sic mean in a PID diagram? - HCBBS Forum
29. Which type is more suitable for level gauges on dust collector hoppers, bins, and bin pumps? - HCBBS Forum
30. Do the circles in the diagram mean output inversion? - HCBBS Forum
31. Which one is the best solution for measuring the combustion air of the burner: thermal mass flow meter, Venturi flow meter or Pitot tube flow meter? - HCBBS Forum
32. May I ask about Emerson 370 and 700XA chromatographs? ? ? - HCBBS Forum
33. Advantages and disadvantages of using a retreat strategy for syngas and chiller compressor units - HCBBS Forum
34. What medium is used at the new project commissioning site to test the sealing performance of hard-sealed pneumatic ball valves? - HCBBS Forum
35. What does Industrial Internet+ mean? - HCBBS Forum
36. Seeking advice regarding pressure gauge issues - HCBBS Forum
37. Questions regarding boiler blowdown valves - HCBBS Forum
38. How are the instrument cables and instruments connected? - HCBBS Forum
39. System communication - HCBBS Forum
40. Regarding the building height of the on-site cabinet room - HCBBS Forum
41. A control valve is needed - HCBBS Forum
42. Will the radar level gauge for crude oil storage tanks display the liquid level once it is turned on? - HCBBS Forum
43. Toxic gas detector alarm point - HCBBS Forum
44. Slot plate connection issue - HCBBS Forum
45. Interlock control of solenoid valves, logic diagrams, power consumption, and allowable transmission distance - HCBBS Forum
46. Consultation on automatic valve air leakage - HCBBS Forum
47. RS flip-flop interlock diagram - HCBBS Forum
48. Pressure transmitters measure negative pressure; can fluid accumulate inside the pressure guide tube? - HCBBS Forum
49. Customized industrial data collection and management system with high adaptability - HCBBS Forum
50. \"Design Manual for Flow Measurement Throttling Devices\" - HCBBS Forum
51. Asking the experts for advice on the causes of instrument failures - HCBBS Forum
52. Prototypes are provided free of charge - HCBBS Forum
53. How to install various pressure transmitters - HCBBS Forum
54. High-pressure valve - HCBBS Forum
55. Case study on the use of contactless external level gauges for measuring liquid chlorine tank levels - HCBBS Forum
56. The list of instruments subject to mandatory calibration includes pressure gauges in a highly unreasonable manner! - HCBBS Forum
57. Inspection requirements for instruments and control systems - HCBBS Forum
58. Solenoid valve for cut-off valve - HCBBS Forum
59. PRAXAIR Prax valve assemblies - HCBBS Forum
60. Optical signal transmission requirements - HCBBS Forum
61. May I ask a question? Do your cabinets receive the 220V DI signals via the electrical MCC cabinet? - HCBBS Forum
62. Regarding the laying of instrument cables, control cables, and communication cables - HCBBS Forum
63. Selection of internal polishing pipeline instrumentation - HCBBS Forum
64. How is the high-level interlock for instruments represented? - HCBBS Forum
65. How to solve the fluctuations in Yokogawa’s electromagnetic flowmeters - HCBBS Forum
66. Problems with magnetic flap level gauges - HCBBS Forum
67. Looking for CFSE exam materials or purchase sources - HCBBS Forum
68. Regarding the flashing exclamation mark on the pH meter - HCBBS Forum
69. Selection of flow meters - HCBBS Forum
70. What is the Letcos control system? - HCBBS Forum
71. Are there any electronic development firms that have worked on the development of SIL instruments? - HCBBS Forum
72. Release the 4th wave of instrument book introductions – free download with screenshot highlights - HCBBS Forum
73. Are there any reliable domestic radar level gauges? - HCBBS Forum
74. Regarding vortex flow meters - HCBBS Forum
75. Is a qualified designer required for the layout plan of detection points for combustible and toxic gas detectors and alarms? - HCBBS Forum
76. If the set pressure of the safety valve is higher than the activation pressure of the SIS, can the safety valve be considered a protection layer for risk mitigation during the SIS classification? - HCBBS Forum
77. Regarding the Bentley 3300 voltage issue - HCBBS Forum
78. For high-temperature wells with temperatures of 80-90 degrees and a depth of 30 meters, what type of level gauge is durable and accurate? - HCBBS Forum
79. Anyone who has used an electromagnetic flowmeter to measure cement concrete? - HCBBS Forum
80. Seeking advice on liquid level measurement in vacuum towers in oil refining production - HCBBS Forum
81. \"Manual for Instrumentation and Operational Management in Petroleum and Chemical Enterprises\" - HCBBS Forum
82. Temperature-compensated dual-chamber balance vessel—Described through illustrations - HCBBS Forum
83. On the principle of the key phase of the unit shafting. - HCBBS Forum
84. Added combustible and toxic gas alarms - HCBBS Forum
85. The Gaozhun flow meter CMF025M exhibits large flow fluctuations - HCBBS Forum
86. Who has a WeChat group for automation professionals in the boiler industry? - HCBBS Forum
87. Summary: China's steel production and consumption and iron ore imports - HCBBS Forum
88. Solve the electrical interlock of instruments in the diagram - HCBBS Forum
89. Flow meter selection - HCBBS Forum
90. Do mass flow meters have a reduced diameter section? - HCBBS Forum
91. Are there any recommended brands for positive pressure indicating instruments and low pressure alarm devices? - HCBBS Forum
92. Which brother has the manual for the Fox Logix520MD locator? - HCBBS Forum
93. Is it necessary to install emergency vent valves on liquefied hydrocarbon spheres? - HCBBS Forum
94. Dinghua Radar Knowledge Lecture: Precautions for installing guided wave radar level gauges - HCBBS Forum
95. Difference in pressure control before and after a self-acting pressure regulating valve - HCBBS Forum
96. Explanations on relevant regulations and standards regarding the first-level power consumption load for hazardous chemical enterprises - HCBBS Forum
97. Is the 220V electric valve powered via a UPS? - HCBBS Forum
98. The bus system already has many applications; why are people still so conservative? - HCBBS Forum
99. Dinghua Radar Knowledge Lecture: Teach you how to install radar level meter - HCBBS Forum
100. Questions about ASCO solenoid valves - HCBBS Forum